Building-screed.



A. T. GIBSON.

BUILDING SCREED. APPLlcATmN FILED Nov. 4. 191e.

Patented June 26, 1917.

Ml f r...

'UNTTED sTATEs PATENT oEEioE.

ALBERT T. GIBSON, 'OF OMAHA, NEBRASKA.

BUILDING-SCREED.

To all lwhom t may concern.'

Beit knownthat I, ALBERT T. GIBSON, a citizen of the United States, residing. at Omaha, in the county of Douglas and State of Nebraska, have invented certain new and useful Improvements in Building-Screeds, of which the following is a specification.

This invention relates to an improvement in buildingscreeds useful principally in wall construction for providing supports for wall strips, door and window casings, and for doors, and has for its object to provide screeds which may be conveniently and economic/ally constructed and of such form that they may be secured in alinement' upon brick or tile more rmly and with a less than usual quantity, comparatively, of adhesive material. With the foregoing objects in. view and others to be mentioned hereinafter, the invention presents a novel construction, combination and arrangement of parts, as described herein and claimed, and as illustrated in the accompanying drawings, wherein,-

Figure'l is a top plan view of a building screed. Fig. 2 is an end view, Fig. 3 is a bottom plan view and Fig. 4 is a view in side elevation of the screed. Fig. 5 is a view in transverse section showing the screed held to a wall by an adhesive layer and a coat of plaster, a wall strip being secured to the screed. Fig. 6 shows a part of a wall in side elevation and a plurality of screeds arranged for receiving a wall strip. Fig. 7 is a sectional view showing screeds secured to a wall and disposed in alinement, a part of a wall strip being added.

Referring now to the drawing, numeral 8 indicates a fibrous block or strip of substantially uniform thickness and of any suitable length, having a plurality of channels 9 formed in its bottom to open on its ends, each channel having opposed, undercut walls a as best shown in Fig. 2. The sides of the block or strip, preferably, are formed convergent from its bottom to its top, that part of each side, near the bottom, being convexed in cross-section as indicated at b and that part near its top being of concaved form in cross-section as indicated at c. The ends of the brous block or strip are also formed convergent, in cross-section, from its bottom to its top, and, as best shown in Fig. 4, that part of each end, near the bottom, is also of convexed form in cross-section, as indicated at d, the part near the top being of Specification of Letters Patent.

Fat e.

Patented June 26, 191'?.

Application led ovemb'er 4, 1916. Seria] N o. 129,497.

concaved form in cross-section as indicated Numeral 10 indicates recesses formed to open upon the ends of the brous block or strip, each recess 10 also opening upon a channel 9, and at ll are indicated recesses opening on the sides of the block, each also opening upon a' channel 9, and having opposed, upwardly divergent walls f.

While the block or strip 8 may be constructed of any suitable librous material,

wood is preferred, and a minor function discharged by the cut away portions forming the recessesand channels mentioned, is that when thus constructed, the blocks or strips will become more quickly seasoned after being manufactured and shrinkage will be more uniform, also that they will be less liable to warp after being applied to a wall from effects of dampness.. The principal function, however, is to provide a secure holding means for the screeds.

The use of the screed is illustrated in connection with a vertical building wall 12 which is generally constructed of brick, tile or concrete.. In operation, patches or deposits 13 of plaster of Paris or similar adhesive material are applied, at intervals, to the wall l2. The screeds are then disposed in af horizontal plane upon the patches or deposits, and by means of a straight-edge or other similar implement (not shown), the screeds are pressed toward the wall 12 against the deposits 18 so that their outer faces will be disposed in alinement, the adhesive material, when the pressure is applied, readily entering the channels 9 andV parts of recesses 10 and 11, and upon becoming hardened the adhesive material will opmeans for nails or other keepers used for i securing thereto the wall strips 15 and 16, or other appendages required in interior building construction, care being exercised that the screeds be disposed in alinement when they are applied to the adhesive deposits.

It will be seen by referring to Fig. 5 that the adhesive material will readily enter the llDO Cil

Will cause the adhesive materialfto move into Y engagement With the undercut walls, and

only a limited pressure is required tecause the adhesive material to engage the Walls/ ofthe recesses lOxand; 151., oi' a part. of; said',

Walls; also by referring to Figs. 3 and 4 it Will be seen that the recesses 1-1 which openv upon the tvvo channels 9 adjacent to the sides of the screedA provide a construction whereby its eXtreme parts or the parts adjacent to its sides and' ends may be circum scribed by vthe adhesive material to-form a moreA perfect bond than usually provided;

The use of the herein described screedA is of 'great' advantage to provide the required supports for ail kinds of interior iinish in building construction; The screeds may be quickly appli'edto .the wall7 and on account of' the advantages derived by the channels and4 recesses described, the larger class of screeds required for -supporting the heavier kinds of"interiorappendages maybe employed'.

-Copiesof thisy pat-ent may 'beobtained for What I claim as my invention and desire to secure by Letters `'Patent is,-

1. A building'screed, comprising` a fibrous biQQk Of substantially uniform thickness having parts adjacent to its sides and ends formed .convergent from its bottom to its top, said block having channels'v'vith undereut' Walls opening on its bottom and ends, and having recesses with inclined Walls opening on its ends andsaid' channels.

2. A building' screed comprising-a fibrous block of substantially uniform thickness having its sides vand ends-formed convergent from its bottom to its top, saidfbiock 'hav'- ing channelswith undercut -Wa'lls formed in its-bottom and opening upon 'its ends, 'and having recesses' with inclined ivalls opening` on its sides and' said channels.

In testimony whereof, I- have afiXed my signature 7in presence o f-two witnesses.

ALBERT VF. GIBSON. Vitnesses Y HIRAM A. Srrmens, L. SrENGEILI dive ce'nts each, by 4addressing the Commissie-ner. Jof Patents.

'WashigtomR-G? 

